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            <h2 class="title"><a id="dbstl_containers"></a>Chapter 2. 
 Dbstl Container Classes  </h2>
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      <p>A dbstl container is very much like a C++ STL container. </p>
      <p>It stores a collection of data items, or key/data pairs. Each container is backed by a Berkeley DB database created in an explicit database environment or an internal private environment; And the database itself can be created explicitly with all kinds of configurations, or by dbstl internally. For each type of container, some specific type of database and/or configurations must be used or specified to the database and its environment. dbstl will check the database and environment conform to the requirement. When users don't have a chance to specify a container's backing database and environment, like in copy constructors, dbstl will create proper databases and/or environment for it. There are two helper functions to make it easier to create/open an environment or database, they are <a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a>
 and <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a>
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      <h4><a id="idp49964032"></a>
See Also
</h4>
      <p> </p>
      <p><a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a>
 <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a>
 <a class="link" href="db_vector.html" title="Chapter 4.  Db_vector">db_vector</a>
 <a class="link" href="db_map.html" title="Chapter 5.  Db_map">db_map</a>
 <a class="link" href="db_multimap.html" title="Chapter 6.  Db_multimap">db_multimap</a>
 <a class="link" href="db_set.html" title="Chapter 7.  Db_set">db_set</a>
 <a class="link" href="db_multiset.html" title="Chapter 8.  Db_multiset">db_multiset</a>
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      <h4><a id="idp49987264"></a> Public Members </h4>
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<a class="link" href="db_container.html" title="Chapter 3.  Db_container">
db_container</a>
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db_container</td>
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db_map</a>
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db_map</td>
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db_multimap</a>
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db_multimap</td>
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db_set</a>
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db_set</td>
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db_multiset</a>
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db_multiset</td>
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db_vector</a>
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db_vector</td>
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